code: def testSiblings_NoOutputKeys(self):
      result = self._siblings(
          self.model,
      )
      self.assertNotIn("model", result)
      self.assertArtifactMapsEqual(
          result,
          {
              "root_artifact": [self.model],
              "model_run": [self.model_run],
          },
      )
  
file_path: tfx/tfx/dsl/input_resolution/ops/siblings_op_test.py
imports: from typing import Sequence
  import tensorflow
  from tfx import types
  from tfx.dsl.input_resolution.ops import ops
  from tfx.dsl.input_resolution.ops import test_utils
label_desc: Use image node_id 6 for calling the SiblingsOpTest obj's underlying member method code with example usage: obj.testSiblings_NoOutputKeys() without return types